Home / 68,520.20-102,780.30-33,528.20

Finding the Fourth Proportional to 68,520.20, 102,780.30 and 33,528.20

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Solution

The fourth proportional to 68,520.20, 102,780.30 and 33,528.20 is: 50,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.20 : 102,780.30 = 33,528.20 : x
  2. Step 2: Convert to fraction form
    68,520.20/102,780.30 = 33,528.20/x
  3. Step 3: Cross multiply
    68,520.20x = 102,780.30 × 33,528.20
  4. Step 4: Simplify right side
    68,520.20x = 3,446,038,454.46
  5. Step 5: Solve for x
    x = 3,446,038,454.46/68,520.20
  6. Step 6: Final answer
    x = 50,292.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.